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Traction Battery 3rd gen pack in to 2nd pack

Discussion in 'Gen 2 Prius Main Forum' started by John in AZ, Jun 12, 2015.

  1. John in AZ

    John in AZ Junior Member

    Joined:
    Aug 21, 2013
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    Vehicle:
    2007 Prius
    Model:
    ----USA----
    After paying for a cheap battery fix & having it fail twice I am looking at other options. I was looking for a good used newer battery but found a 2013 pack for $750 and since age seems more important than anything I like the idea of buying it and taking the guts out to put in my 05 case & electronics. Is this feasible? I know in the past there was talk of using 3rd gen c ells but cant find the threads now.
    Thanks
    John
     
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
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    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    That is what I would do if faced with a 2G traction battery failure.
     
  3. brucebee

    brucebee Junior Member

    Joined:
    Sep 6, 2014
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    Location:
    vista, ca
    Vehicle:
    2004 Prius
    Model:
    II
    I have heard that the cells used in the newer gen2 batts are the same as the gen 3 batts. Can someone verify that? Just had a new hvbatt installed today in 04 and I hope it goes farther than the 177400 the last one went. Not really complaining but I live in a mild climate
     
  4. bisco

    bisco cookie crumbler

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    boston
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    Plug-in Base
    that remains to be seen, but some would say it's more about the eleven years than the 177,000 miles.
     
  5. brucebee

    brucebee Junior Member

    Joined:
    Sep 6, 2014
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    Location:
    vista, ca
    Vehicle:
    2004 Prius
    Model:
    II
    Yes, I guess that was a good enough run. My battery checked at less than .10/ volt difference on all banks but 1. It was all I could do not to try to repair the battery. As everyone knows it is a problem if it goes out a month later. I did drive it about 60 milles after it was diagnosed to get the install done. I have driven about 140 miles and my meter says I am getting about 5mpg better. I know it is too early to tell but it seems to glide and run more on the battery. I saw a post where someone said the cells on the newer II batts had the same #s as the III batts but did not verify. Next oil change am swithching to synthetic oil as I want the motor to last as long as the battery.
     
  6. miso03

    miso03 Junior Member

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  7. jeff652

    jeff652 Senior Member

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    Location:
    Idaho
    Vehicle:
    2005 Prius
    Model:
    II
    We have several customers who have used 3rd gen modules in a 2nd gen without issue.